Bored and alone, a hot teen sister and brother turn to self-pleasure for relief. Michelle masturbates in the bathroom, her fingers delving into her wet pussy, while her brother, excited from a workout, bursts in, catching her in the act. They argue, but later, they decide to masturbate openly in front of each other. Michelle's eyes widen at the sight of her brother's massive, hard cock. She fantasizes about it filling her tight cunt, but their erotic encounter is cut short by an unexpected interruption.